diff --git a/@BearImp/calcCap_semianalytisch3D.m b/@BearImp/calcCap_semianalytisch3D.m
index a4c73eda303d00ce2067e2b3a5d4c1445854f030..ed6f41e560e6f7a8d7c878733ab2fa6062211742 100644
--- a/@BearImp/calcCap_semianalytisch3D.m
+++ b/@BearImp/calcCap_semianalytisch3D.m
@@ -94,7 +94,7 @@ function C_out = calcCap_semianalytisch3D(s,R_WK,R_R,B_R,B,R_L,epsilon_r,h_0,a,b
         case 'neglect'
             r(r2small) = inf;
         case 'filmThickness'
-            r(r2small) = h_0+R_RE;
+            r(r2small) = h_0+R_WK;
     end
     
     integrand_t = R_WK^2./(r-R_WK).*cos(T_t);